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Finding the Fourth Proportional to 63,509.66, 87,571.06 and 51,987.92

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Solution

The fourth proportional to 63,509.66, 87,571.06 and 51,987.92 is: 71,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,509.66 : 87,571.06 = 51,987.92 : x
  2. Step 2: Convert to fraction form
    63,509.66/87,571.06 = 51,987.92/x
  3. Step 3: Cross multiply
    63,509.66x = 87,571.06 × 51,987.92
  4. Step 4: Simplify right side
    63,509.66x = 4,552,636,563.80
  5. Step 5: Solve for x
    x = 4,552,636,563.80/63,509.66
  6. Step 6: Final answer
    x = 71,684.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.